I'm not sure if I understand your design here, so I'll just explain how I understand it:
You make a trigger_teleport for each slot, while the triggers all share the same name, the slots do not.
Give all triggers this output:
OnStartTouch -> !self -> Disable
Depending on what you want, you can now make all triggers occupy the same space, perhaps in a doorway.
This will kind of give you the "random destination" effect.
Or you could make an entrance for every single teleporter.
When your raffle game has ended, you can just give your triggers the input enable, it's a lot easier now since all share the same name.
Let's say a logic_relay triggers the reset:
OnTrigger -> NameOfYourTeleporters -> Enable
Hope this helps